federal state and local officials were in san francisco to kick off the final phase of the $1.4 billion doyle drive replacement project. workers are dismantling the seismically unsafe roadway and building the new presidio parkway. the new phase will not slow down the commute since the work will take place adjacent to traffic. >> the traveling public will slowly but surely see the completed project come up from the ground. >> reporter: the rubble of doyle drive is supposed to be recycled. the steel tresses to be melted down and the steel tresses crushed and then used to build the new highway. >>> the department said more than 700 plants were discovered many were growing in two large greenhouses. authorities said they also found 1,300 pounds of marijuana ready to sell along with an ak47 assault rifle. the estimated value of the marijuana is said to be about $4 million. >>> san jose firefighters are sounding an alert tonight. they want people to be on the look out for a serial arsonist. the arsonist struck last night setting a small fire on delna manor lane. there's been 10 deliberately se